Is there a criterion for distinguishing between issues of creedal jurisprudence and issues of worship jurisprudence?

Question:
He says: Honorable Shaykh, may Allah grant you success, is there a known criterion for distinguishing between issues of creedal jurisprudence and issues of worship jurisprudence?

Answer:
What concerns Allah (Mighty and Majestic) in terms of His names and attributes is the core of creed. What concerns acts of worship in terms of sincerity to Allah (Mighty and Majestic) is part of creed, and in terms of following the Messenger (peace and blessings be upon him) it is a matter of avoiding religious innovations and newly invented matters. Yes.